Double twist flyer spinning machine



May 9, 1933- A. FERIER 1,907,530

DOUBLE TWIST FLYER SPINNING MACHINE Filed April 2. 193.0 3 Sheets-Sheetl zo F71 ,4mm Eff/MJ May 9 1933- A. FRIER 1,907,530

DOUBLE TWIST FLYER SPINNING MACHINE Filed April 2, 1950 5 Sheets-Sheet 2by, fwn

May 9, 1933. A. FERIER 1,907,530

DOUBLE TWIST FLYER SPINNING MAHINE Filed April I?, 1930 3 Sheets-Sheet 3Patented May 9, V1933 UNITED STATES PATENT OFFICE ALBERT FBIER, OFLYON', FRANCE, ASSIGNOB TO BIANCHINI, SOCIETE n Y NOI COLLECTIE', 0FLYON, FRANCE DOUBLE TWIST FLYER SPINNING MACHINE v.Application illedApril 8, 1930, Serial No. 440,999, and in France Ine l0, 1029.

the other hand, to an increase in the angularf speed of the iiyer;

A constant tension of the yarn or yarns to be spun owing to theoperation of unwindg f obtaining the direct transformation of a reel ofraw silk in yarn spun on pirns, doing thus away with the operationsofun- 20 winding, reelin and pirning;

The easy an direct manufacture of doubled yarns and fancy threads;

Of obtaining a constant ratio between the angular speeds of the spindleand of the winding bobbin, thus doing away with what is called a slacktwist. 4

According to the invention the driving mechanisms' of both the windingbobbin and o the thread guide is loosely mounted on the spindle, insidethe balloon formed by the winding of the thread and is held in stableequilibrium by its own weight by having its center of gravity below theaxis of the Spindle.

' The invention relates more particularly to a spinning machine of theabove stated type, in which the winding bobbin for the thread ispositively driven by the spindle itself 4o through the intermediary of areduction gear and in which a cam and slide device is used fortransforming the rotating movement of the spindle into the reciprocatingstraight movement of the thread guide. The invention will be understoodwith refence to the following descri tion and the accompanying drawingsin w ich,

Figs. 1 and 2 are longitudinal and transverse sections made on line 1-1of Fig. 2 and line 2 2 of Fig. 1, respectively.

Fig. 3 is a horizontal section made on line 3 3 of Fig. 1.

Fig. 4 is a front elevation showing in section a detail 'of the threadguide.

Figs. 5 and 6 are two views sho re- 55 spectively in side and frontelevation the whole of the machine.

On the spindle a, into the centre of which passes through an axial holeb, the thread or yarn c to be thrown or spun and which is driven forexample by 'an endless belt d `(Fig. 5), is keyed a circular disc epierced at f on its periphery and a worm g. AThis latter meshes with aworm wheel h, which is loosely mounted on a stationary shaft i and isintegral with a stepped cone j on its other side, said worm wheel kcarries near its periphery a stud on which rotates freely asmallsatellite pinion or follower k.- This latter meshes simultaneously andconstantly with two gear wheels having an unequal number of teeth; onetooth l is keyed on the stationary shaft i and the other tooth m iscoupled to a cam n having a symmetrical profile and is freely mountedwith said cam 'on the shaft z'.

From the steppedcone y' the movement is transmitted by a pinion omounted on a bracket :v pivoted at 'w and operated by a form p and crankg to a. reducing gear r controlling the rotation of a drum s. Saidlatter drives by friction the bobbin t or the like on to which the spunthread c is to be Wound. Said bobbin t is carried between the free endsof' two pivoting arms or brackets u', carried by a short shaft c.

By altering the position of the traveller pinion o on the stepped cone jor by changing the ratio of the gears i', any desired speed of rotationof thebobb'in with respect tothe 9u Vity being located below the axes oangular speed of the spindle a can be obtained.

The cam n drives through rollers 2, mounted on a slide 5 sliding in astraight guide, a lever 3 provided with a curvilinear groove 4. Saidlever 3 is pivoted at 6 on one side and terminates by a form 8 on theother side. This latter drives by means of a roller 8 a l sleeve 9,which, owing to a projection 10 can only be displaced parallel to itselfwithout rotating on the shaft v, grooved at 11. This sleeve 9 isprolonged by a hub 12 on which is frictionally mounted a collar 13prolonged by an arm 14, carrying at its free end the thread guide 15. l

The bobbin t is held in position between the ends of the arms u by aspring 16.

All the aforesaid vapparatus is enclosed inside a casing 17 mounted inball bearings 18 on the end of the spindle a and held in stableequilibrium by its weight, its centre of avgr the spindle a. a

On starting up the spinning or throwing, the thread to be spun comingfrom a reel or bobbin 22 (Fig. 5) passes through a hook 21 and isprevented from coming in contact with the frame 17 'by a ring 20, beforethe centrifugal force has caused the formation of the balzontal axisduring rotation which envelopes said gear casing and the mechanism,/ andmeans for guidin the thread from said disk through said mec anism tosaid bobbin, including an axial channel in said shaft opening towardsaid bobbin at one end and terminating at the other end in a lateralopening in ALBERT FRIER.

oon. The profile of this latter may be altered I by advancing orwithdrawing the aforesaid hook 21. Thus from the hook 21 to the windingbobbin t, two twists in the same direction are imparted to the thread,which gives the same result as if one twist in opposlte direction wereimparted at each end of the thread.

It will be easily understood that the direction of travel of the threadcan be reversed by lacing the non-twisted yarn at t inside the alloon.

The twist may be applied in either left or right directions according tothe direction of rotation of the spindle a and of the direction oftravel of the yarn through the thread guide 15.

Having now particularly described and ascertained thefnature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is:

A double twist flyer spinning machine of thecharacter described,including the combination, with driving and spinning mechanism includinga bobbin upon which the thread is wound, havin a horizontal axis, of ahorizontally dispose drive shaft for said mechanism'transverselyarranged with respect to the axis of'said bobbin, a gear casingenclosing said mechanism, having the center of gravity thereof disposedbelow the drive shaft and pendently mounted upon said shaft so as tooscillate thereon in floating condition during rotation of the shaft, adisk rigid with said shaft so as to rotate therewith having a threadaperture adjacent to the periphery in order to form a balloon about ahori-

